From 1b0fce8c8e69485e49a7d34aac3d4c2a2aa15d62 Mon Sep 17 00:00:00 2001
From: Davide Tronchin <davide.tronchin.94@gmail.com>
Date: Thu, 29 Jun 2023 12:37:36 +0200
Subject: [PATCH] net: usb: cdc_ether: add u-blox 0x1313 composition.

Add CDC-ECM support for LARA-R6 01B.

The new LARA-R6 product variant identified by the "01B" string can be
configured (by AT interface) in three different USB modes:
* Default mode (Vendor ID: 0x1546 Product ID: 0x1311) with 4 serial
interfaces
* RmNet mode (Vendor ID: 0x1546 Product ID: 0x1312) with 4 serial
interfaces and 1 RmNet virtual network interface
* CDC-ECM mode (Vendor ID: 0x1546 Product ID: 0x1313) with 4 serial
interface and 1 CDC-ECM virtual network interface
The first 4 interfaces of all the 3 configurations (default, RmNet, ECM)
are the same.

In CDC-ECM mode LARA-R6 01B exposes the following interfaces:
If 0: Diagnostic
If 1: AT parser
If 2: AT parser
If 3: AT parset/alternative functions
If 4: CDC-ECM interface

Signed-off-by: Davide Tronchin <davide.tronchin.94@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ether.c | 6 ++++++
 1 file changed, 6 insertions(+)

--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -879,6 +879,12 @@ static const struct usb_device_id	produc
 				      USB_CDC_PROTO_NONE),
 	.driver_info = (unsigned long)&wwan_info,
 }, {
+	/* U-blox LARA-R6 01B */
+	USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1313, USB_CLASS_COMM,
+				      USB_CDC_SUBCLASS_ETHERNET,
+				      USB_CDC_PROTO_NONE),
+	.driver_info = (unsigned long)&wwan_info,
+}, {
 	/* ZTE modules */
 	USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM,
 				      USB_CDC_SUBCLASS_ETHERNET,
